Hi ,

I have installed Redhat Linux 9.0 . now i want to join windows domain . the entries what i had done are
1) cd /etc/samba/smb.conf
workgroup = evalueserve
security = domain
password server = IP address of my DC (windows)
2) i read somewhere that i have to give the following command to join a network

net rpc join member -U administrator

But it says no command like " net"

I am not able to login to Linux server through my Windows ID. Please suggest.

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Are you talking about an NT domain or an active directory?

for an NT domain, you should have the following in your smb.conf:

netbios name = SAMBA
workgroup = EVALUESERVE
security = domain
password server = IP_address_of_your_DC 

you should then be able to do something like:

smbpasswd -j EVALUESERVE -r IP_address_of_your_DC -U NT_ADMINISTRATOR

If you're talking about an active directory domain, post again. I wasn't about to go into a crapload of information you may not need.


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Hi ,

Thanks for the reply, but i am talkin about active directory domain. any idea how to do that.


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First, make sure kerberos is installed:

rpm -qa | grep krb

this should return at least 3 packages: krb5-devel, krb5-libs and krb5-workstation

Next, make sure the ldap development libraries are installed:

rpm -qa | grep ldap-devel

If either of these returns nothing, you'll need to install them - which you can do from the Redhat CD.

make sure there's an entry for your active directory DC in your /etc/hosts file: addc

Next, edit your /etc/krb5.conf to match your site. Everything should be fairly self-explanitory - and everything is case sensitive. Do not comment this file.

Once you've gotten to this point, you can try:

/usr/kerberos/bin/kinit user@DOMAIN.COM

replacing user with a real user and DOMAIN.COM with a real domain (which must be UPPERCASE). If things are working, you'll be prompted for a password. If you enter the correct password, you'll come back to a bash shell, if not, you should be presented with:
"kinit(v5): Preauthentication failed while getting initial credentials"
or some such.

Note: If the clock time on the Linux machine is more than 5 minutes off from the time on the windows machine no ticket information will work. There are three wys to deal with this:

  1. Have the Linux server act as a network time server, with the windows machine as a client
  2. Have the windows machine act as a time server for the linux client
  3. Make both systems pull the time from the same 3rd server

Next, uninstall samba if it's installed:

rpm -e samba

get the latest version of samba:

$ wget

expand and install samba:

$ tar -zxvf samba*.tar.gz

$ cd samba-3.0.13

$ ./configure --prefix=/usr/local/samba --with-ldap --with-ads --with-krb5 --with-pam --with-winbind

# make && make install

In your smb.conf:
netbios name = LINUX_SERVER_NAME
realm = DOMAIN.COM
ads server =
security = ADS
encrypt passwords = yes

start samba:

/etc/rc.d/init.d/smb start

To add the linux computer to the AD, you need to log into the DC and add it as a user with such privledges, so (from the Linux system):

/usr/local/samba/bin/net ads join -U Administrator

it should prompt you for Administrator's password. Note that Administrator should be a user with the right to add a computer to the AD.

you should see something like:

To verify this worked, go to the windows DC and open Active Directory->Users and Computers and look for your linux machine to be listed there.

That's all you absolutely need to connect to the AD. If you want to map users to the AD (which is probably why you're doing this), open /etc/nsswitch.conf and change this:
passwd: files
shadow: files
group: files

to this:
passwd: compat winbind
shadow: compat
group: compat winbind

start the winbind daemon:


make sure it's running:

ps -ae | grep winbindd

if nothing gets returned, you probably didn't configure samba with kerberos and ldap support. If it shows winbindd running, you're all set. To make sure everything starts on reboot:
open /etc/rc.d/init.d/smb and /etc/rc.d/init.d/winbindd and make sure the line:

chkconfig: 345 NN NN

exixts (NN will be different numbers pertaining to priority), it should be on line 3 of both files. if these lines don't exist, add them. If they read:

chkconfig: - NN NN

change the - to 345

save and close those files and run chkconfig:

chkconfig smb reset

chkconfig winbindd reset

you can check the runlevels they will start at with

chkconfig smb --list

chkconfig winbindd --list

That should about cover everything.


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I have a slightly related question to this. How would I go about setting up name resolution? I want to be able to ping a windows computer from my linux box by it's computer name as found in WINS. If this is not possable, I atleast need a way to update the hosts file once a day, just incase the IP for the windows server has changed. Is either of these possable?

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in your smb.conf [global] section:

        wins support = Yes
        name resolve order = wins lmhosts hosts bcast
        wins server = wins_server_ip_address
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I have installed RHL ES 4.0 . now i want to join windows domain(SPPS) . the entries what i had done are
1) cd /etc/samba/smb.conf
workgroup = SPPS
security = domain
password server = IP address of my DC (windows)
2) Now to add the Linux server to the domain i used

net rpc join member -U administrator

But it says "Unable to find a suitable server"

If someone knows please help.
Thanks in advance.

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HI All i have joined my linux (RHEL4 AS)system to existing windows 2003 domain...but now the problem is...i m not able to login using the domain users although i can see the users list if i run wbinfo -u...any help will be apriciate.

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